Checkpoint stop
Drivers must stop at the checkpoint or inspection point indicated by this sign and proceed only when allowed.
Verified as Thai road sign บ.31 from Department of Rural Roads sign series on 2026-05-15.
Study guide
Connect this sign to practice
Checkpoint stop is one of the prohibition signs candidates lose marks on. Not because the symbol is unfamiliar, but because the question reframes the scenario. Practising it in the flow surfaces those reframings before test day.
Now see it in questions.
Spotting Checkpoint stop in isolation is one thing. Recognising it inside a real exam-style question, among lookalikes and trick wording, is another. The diagnostic mixes it in for you.
